Use and application of damp-proof renders/plasters
The Weber damp-proof renders/plasters (all in accordance with the guidelines of WTA - Scientific and Technical Working Group for Building Conservation and Monument Preservation, Germany) are used indoors and outdoors in one or two layers up to 40 mm, depending upon roughness and salt content of masonry. Thanks to their large pore structure, the damp-proof renders/plasters are able to take over crystal-building salts and store them within their porous body. The removal of damaged renders/plasters at a distance of 80 cm above the visibly damaged area with moisture and salt contamination is the main condition for substrate preparation. When used as internal waterproofing layers, damp-proof plasters as "dampness regulating plasters" uptake the condensation moisture within the rooms for a certain period of time.
Simple & safe to the goal
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5. The quick-setting stipple coat weber.san 951 S provides a bonding with the substrate. It is applied net-like (i.e. with a surface coverage of 50%), using the throw-on technique with a triangular hawk trowel. If a waterproofing slurry is applied on the internal side of the basement wall, the coverage of the stipple coat must be 100%.
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6. Application of the damp-proof render/plaster weber.san 954, using a flat trowel.
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10. Smooth the surface of weber.san 954 with a sponge board (red).
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11. Whenever damp-proof renders/plasters are applied as cement-based waterproofing slurries, one layer is in general sufficient. Insert the woven glass fiber mesh for damp-proof renders weber.sys 987 into the upper third of the render layer. The render takes over the task of moisture regulation, i.e temporary uptake of condensate moisture.
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